Study Evaluating OsseoSpeed™ Narrow Implant in the Upper and Lower Anterior Jaw

Inclusion Criteria: * Provision of informed consent * Aged 18-70 years at enrolment * History of edentulism in the study area of at least two months * Presence of natural tooth roots adjacent to the study implant position * Deemed by the investigator to have a bone height and width suitable for 3.0 mm diameter study implant * Deemed by the investigator as likely to present an initially stable implant situation Exclusion Criteria: * Unlikely to be able to comply with study procedures, as judged by the investigator * Uncontrolled pathologic processes in the oral cavity * Known or suspected current malignancy * History of radiation therapy in the head and neck region * History of chemotherapy within 5 years prior to surgery * Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration, as deemed by the investigator * Uncontrolled diabetes mellitus * Corticosteroids or any other medication that could influence post-operative healing and/or osseointegration * Smoking more than 10 cigarettes per day * Present alcohol and/or drug abuse * Involvement in the planning and conduct of the study (applies to both Astra Tech staff and staff at the study site) * Previous enrolment in the present study * Simultaneous participation in another clinical study, or participation in a clinical study during the last weeks prior to enrolment